The Story
Plant Bio
Lysimachia ephemerum is an upright, clump-forming perennial with lance-shaped, grey-green leaves. In summer, it bears elegant, slender spires of small, star-shaped white flowers.
Valued for its stately, vertical form and elegant flower spikes, this species adds a strong architectural element to borders. The grey-green foliage provides a cool contrast to other plants.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
6, 7, 8
Water
Prefers consistently moist soil
Humidity
Prefers moderate humidity
Lifespan
Perennial
Native To
Southwestern Europe
Toxicity
Non-toxic to humans and pets
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Tuck seeds into moist soil in early spring
- Keep soil consistently moist during germination
- Transplant seedlings after 6 weeks when established
- Place in full sun for best flowering
- Water regularly during dry spells
- Fertilize lightly in spring with balanced fertilizer
Pro Tip
Ensure well-drained soil and full sun for optimal growth
Keep It Thriving
Care Guide
Do
- Water during dry periods 🌱
- Prune after flowering to maintain shape
- Mulch to retain moisture
Don't
- Avoid overwatering ❌
- Don’t disturb roots excessively
- Skip fertilizing in late fall
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Spring Cleanup | ||||||||||||
| Stake |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Willow-leaved Loosestrife questions
What zones can Willow-leaved Loosestrife grow in?
Willow-leaved Loosestrife is hardy in USDA Zones 6–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Willow-leaved Loosestrife deer resistant?
Not reliably. Deer may browse Willow-leaved Loosestrife, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Willow-leaved Loosestrife bloom?
Willow-leaved Loosestrife typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Willow-leaved Loosestrife need full sun?
Willow-leaved Loosestrife does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Lysimachia to compare
Golden Creeping Jenny
Lysimachia aurea
Creeping Jenny
Lysimachia nummularia 'Creeping Lily Turf'
Golden Moneywort
Lysimachia nummularia 'Aurea'
Goldilocks Golden Creeping Jenny
Lysimachia nummularia 'Goldilocks'
Miniature Creeping Jenny
Lysimachia japonica 'Minutissima'
Yellow Loosestrife
Lysimachia punctata
Keep exploring
Explore the genus
Hardy in your zone?
Grow Willow-leaved Loosestrife with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.